A note about creating your own service. This is trickier than it sounds. If you step back from a wedding ceremony, there are two types of material: things for you to say, and things for the officiant to say. It is normal for you to want control over the things that you will say. This is usually not a problem. The parts to be read by the officiant are a little more complicated. You're putting words in someone else's mouth here, and they will almost certainly have something to say about that. It's a better plan to talk to your officiant about the ideas that you would like to include, and let him or her come up with a draft for you. You will likely end up with something that everyone's comfortable with, and avoid unnecessary misunderstandings.